EP2734726A1 - Dispositif de production d'énergie électrique à partir d'énergie d'origine hydraulique - Google Patents

Dispositif de production d'énergie électrique à partir d'énergie d'origine hydraulique

Info

Publication number
EP2734726A1
EP2734726A1 EP12720077.2A EP12720077A EP2734726A1 EP 2734726 A1 EP2734726 A1 EP 2734726A1 EP 12720077 A EP12720077 A EP 12720077A EP 2734726 A1 EP2734726 A1 EP 2734726A1
Authority
EP
European Patent Office
Prior art keywords
guide
water
channel
drive
pressure transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12720077.2A
Other languages
German (de)
English (en)
Other versions
EP2734726B1 (fr
Inventor
Felix Widmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WRH Walter Reist Holding AG
Original Assignee
WRH Walter Reist Holding AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WRH Walter Reist Holding AG filed Critical WRH Walter Reist Holding AG
Publication of EP2734726A1 publication Critical patent/EP2734726A1/fr
Application granted granted Critical
Publication of EP2734726B1 publication Critical patent/EP2734726B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B7/00—Water wheels
    • F03B7/006—Water wheels of the endless-chain type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • the invention relates to a plant for the production of electrical energy from hydropower, comprising a two spaced apart Umlenkorgane rotating drive assembly which is driven by hydropower in a direction of rotation, with a running along a gradient load section, wherein the drive arrangement arranged a plurality of in the direction of rotation behind one another and spaced apart gravitational pressure transmission units each having a Anströmorgan further comprising a generator for recovering electrical energy from the rotating drive assembly. Furthermore, the invention also relates to a method for operating such a system
  • the kinetic energy of the incoming water is used to drive a generator to generate electricity.
  • Anströmorgane such as turbine blades, provided which are flowed through by the water and set in motion.
  • Hydropower plants of the first type can be found in river power plants or storage power plants. Even the mid-submersed water wheel is operated in this way.
  • a second type of plant not primarily the kinetic energy of the inflowing water but rather its potential energy released during the passage of a potential drop is used. That is, according to this principle, the gravitational force of acting on Anströmorgan water drives a drive member. This principle is used, for example, in the overshot waterwheel.
  • EP-A-1 731 756 describes a hydropower plant in which the potential energy of water is used to generate electrical energy.
  • the plant comprises a hydroelectric power unit with a vertical shaft and a generator connected to the hydro power unit.
  • a hydroelectric power unit with a vertical shaft and a generator connected to the hydro power unit.
  • the shaft mounted on a chain blades are arranged, which receive a certain volume of water. Due to the weight of the water on the blades, the chain is driven and via this a generator.
  • the system is relatively inflexible in terms of its applications, since this is executable only together with a vertical shaft.
  • WO 201 1/041918 also describes a plant for the production of electrical energy from hydropower.
  • This contains a revolving drive chain with a load and a return strand.
  • the drive chain is guided in a direction of rotation about two deflecting elements which are arranged offset both horizontally and vertically from one another.
  • the drive chain includes a plurality of in the direction of rotation successively arranged and spaced from each other Anströmorgane.
  • the Anströmorgane each form part of a chain link of the drive chain.
  • the Anströmorgane engage on the side of the load tube in an inclined water supply channel and form with the side channel walls and the channel bottom water absorption compartments.
  • the individual water intake compartments take in the inlet area a certain volume of water, which is released only in the outlet area again from the water storage compartment.
  • the system includes a generator for generating electrical energy from the circulating drive chain.
  • the water is fed into the water supply channel at a higher inlet region, wherein the blades which dive into the water supply channel retain the inflowing water in the water absorption compartments formed.
  • the blades are driven by the weight of the water, which causes the water in the receiving compartments along the water supply channel to a lower outlet.
  • the solution described has the disadvantage that the blade guide in the water guide channel is rather imprecise, so that the receiving compartments are too permeable in the direction of movement for the entrained water and a part of the entrained water flows unused the water supply channel to the outlet.
  • the invention is characterized in that the gravitational pressure transmission units comprise guide elements and the system along the load section contains guide means, in which guide elements of the gravitational pressure transmission units are displaceably arranged, such that the Gravitation pressure transmission units can be guided at least in the region of the load section between the two deflecting members.
  • Gravitational pressure transmission units are preferably positively guided by the guidance elements guided in the guide means. Forced means that the guide elements are guided over the guide means, based on a three-dimensional orthogonal or polar coordinate system, at least in two spatial directions. These two spatial directions are preferably opposed to each other.
  • the gravitational pressure transmission units are preferably designed in several parts.
  • the guide elements and Anströmorgane are preferably designed as separate components.
  • the two deflecting members are preferably arranged offset both horizontally and vertically to each other.
  • the system according to the invention further comprises a water guide channel running along a gradient or a slope, wherein the Anströmorgane the gravitational pressure transmission units in the region of the load section extending transversely to the water supply channel and engage in this.
  • the individual water absorption compartments receive a certain volume of water in the inlet area, which is released from the water storage compartment only in the outlet area.
  • the Wasserbowungskanal, or gutter called preferably forms a U-shaped Querterrorismsprofi 1 with a channel bottom and two channel side walls.
  • the Anströmorgane are conveniently guided without contact in Wasserbowungskanal. Since the position of the Anströmorgane can be determined very accurately relative to the water guide channel thanks to the positive guidance by the guide means, the Anströmorgane only small distances to the adjacent channel walls.
  • the gap distance can z. B. only 1 to 5 mm, in particular only 2 to 3 mm.
  • An upper deflecting member is preferably arranged in an inlet region, in which water is introduced into the water supply channel.
  • a lower deflecting member is preferably arranged in an outlet region in which the water is discharged from the water-absorbing compartments.
  • the gravitational pressure transmission units are returned to the inlet area along a return section from the outlet area.
  • the return section preferably runs above the load section.
  • the return section is preferably guided parallel to the load section.
  • the water can flow in the inlet area parallel to the direction of circulation, ie frontally on the Anströmorgane and in the water supply channel.
  • the water in the inlet region preferably in the direction of rotation, flows laterally obliquely toward the inflow organs and into the water-holding compartments. A combination of frontal and lateral oblique flow is also possible.
  • the Anströmorgane are preferably designed as wall elements, in particular as schaufeiförmige wall elements.
  • the Anströmorgane can z. B. on both sides, against the direction of movement of the drive assembly curved sidewall Have areas that form a blade-like receptacle. Thanks to such a shape of the inlet process of the water is optimized.
  • the Anströmorgane are preferably formed in lightweight construction.
  • the wall elements are preferably thin-walled.
  • the Anströmorgane are preferably made of a lightweight material, such as aluminum or plastic, in particular fiber composite plastic.
  • the Anströmorgane may also be formed of an aluminum-plastic-aluminum composite plate element.
  • the width (lengthwise dimension transverse to the water duct) of the Anströmorgans is suitably much larger than its depth or height.
  • the ratio width to depth is preferably 2: 1 and greater, and in particular 3: 1 and greater or even 4: 1 and greater. It is also conceivable that the ratio width to height is in a similar range. So this ratio z. B. 2: 1 and greater, in particular 3: 1 and greater or even 4: 1 and greater.
  • the width of the water inlet in the inlet area is relatively large compared to the depth of the water absorption compartments to be formed, which allows a fast and correspondingly high filling of the water absorption compartments.
  • the width of the Anströmorgane z. B. about 1000 mm, while the depth is about 250 mm.
  • these each preferably at least one stiffening element, also called reinforcing element, on.
  • the Anströmorgane each have at least two off-center or laterally arranged stiffening elements.
  • the stiffening elements are preferably arranged in a lateral end region of the Anströmorgane.
  • the stiffening elements can z. B. be formed as stiffening ribs or stiffening walls or transverse walls.
  • the stiffening walls can be closed or provided with openings.
  • the stiffening walls may in particular also be designed as an open truss structure.
  • the transverse walls preferably run parallel to the direction of movement of the drive arrangement.
  • the transverse walls can be attached to the Anströmorgan via a force, form or material connection. A combination of the mentioned types of connection is also possible.
  • the transverse walls may in particular be plugged, glued or welded.
  • the guide elements can be designed as guide rollers or sliding elements.
  • the sliding elements can be sliding shoes.
  • rollers includes all bodies that are capable of rolling over a surface. These include z. B. also wheels and balls.
  • the positive guidance of the gravitational pressure transmission units can be designed in different ways with respect to the arrangement and configuration of the guide elements and the guide means.
  • the guide means may comprise at least one guide rail, which forms at least one running or sliding surface for the guide elements.
  • the guide means can also be formed by a tubular channel in which the gravitational pressure transmission units are guided displaceably.
  • the tubular channel forms in the load section at the same time also the water supply channel.
  • the guide element can be formed here for example by the Anströmelement itself. If the guide means comprise guide rails, the gravitational pressure transmission units according to a first variant, viewed in rotation, each contain two guide elements arranged laterally from the inflow element.
  • the system further includes in the load section two laterally on the water supply channel, in particular in the channel side walls, arranged guide rails, wherein the guide elements are guided along the load section in the guide rails.
  • the guide elements are arranged laterally with respect to the closed orbit on the radially outer end portion of the Anströmorgans.
  • the guide rail is arranged laterally in the region of the bottom-side end section of the water guide channel.
  • the guide elements are arranged laterally with respect to the closed orbit between the radially outer and inner end portions of the Anströmorgans.
  • the guide rails are arranged laterally in the region between the bottom-side and the opening-side end portion of the water guide channel in or on the channel side wall.
  • the guide elements with respect to the closed orbit are laterally at the radially inner end portion of the
  • the system includes a guide rail arranged above the water guide channel.
  • the gravitational pressure transmission unit also contains at least one guide element arranged above the inflow element, which guide element is guided in the guide rail in the region of the load section.
  • the design of the drive assembly may also be different in terms of the functional interaction between the individual gravitational pressure transmitting units. According to a first embodiment of the invention, the gravitational pressure transmission units are now not connected to each other, ie independently of one another in terms of connection technology.
  • the drive arrangement is driven according to this embodiment by the transmission of compressive forces between the gravitational pressure transmission units.
  • the gravitational pressure transmission units are designed as pressure bodies and contain force transmission members for transmitting pressure forces from a trailing in the direction of rotation gravitational pressure transmission unit to a, preferably immediately, forward gravitational pressure transmission unit.
  • the power transmission organs can, for. B. form pressure surfaces over which the pressure forces between the gravitational pressure transmission units are passed on.
  • the drive arrangement can be moved around the deflecting members in the direction of rotation, similar to a drive chain, but without the gravitational pressure transmission units being connected to one another.
  • the drive arrangement is designed as a contiguous drive structure, similar to a drive chain, with a plurality of contiguous drive links, similar to the chain links, the drive links preferably corresponding to the gravitational pressure transmission units.
  • the gravitational pressure transmitting units include connecting members for articulating adjacent gravitational pressure transmitting units to a drive structure.
  • Each drive member preferably includes a Anströmorgan.
  • the drive members of the drive structure can be driven by transmission of tensile, compressive or a combination of tensile and compressive forces in the direction of rotation.
  • Each drive member may, viewed in the direction of rotation, contain guide elements attached thereto on both sides, in particular guide rollers, for positively guiding the drive structure at least in the area of the load section along the water guide channel. Furthermore, viewed in the direction of rotation, each drive member, viewed in the direction of rotation, may contain connecting members mounted thereon for the articulated connection of adjacent drive members to a drive structure. The drive members are pivotally connected to each other in particular in a plane parallel to the direction of movement or orbit of the drive structure.
  • the guide elements in particular the guide rollers, arranged on the connecting member and connected via a connecting axis with this.
  • the connection axis is preferably formed simultaneously as a connecting element between the drive members.
  • the connection axes take the function of a connecting bolt was.
  • the connection between the drive members can also be formed independently of the connection of the guide elements.
  • the drive member has a fork-shaped receiving element with forked lugs on each side, which have openings for passing through a roller axis corresponding to the connecting axis.
  • the drive member includes a in the direction of movement of the fork-shaped receiving element opposite receiving body, for. B. in the form of a tab, with an opening for performing the roll axis.
  • the guide elements in particular the guide rollers are viewed in the direction of rotation preferably each outside the lateral end of the Anströmorgans arranged.
  • the guide elements furthermore preferably each have a lateral guide element directed laterally outwards relative to the guide rail.
  • the gravitational pressure transmission units, in particular the drive members, are movable on both sides across the water guide channel via the side guide elements.
  • the side guide element is preferably dome-shaped or designed as a guide cap, and is in a guide contact with the guide rail.
  • the guide rail is preferably formed as a profile longitudinal body for fho recording the guide elements.
  • the profile longitudinal body contains in particular a guide channel.
  • the guide rail or the guide channel has a running surface for the guide elements, for. B. a sliding surface for the sliding elements or a rolling surface for the guide rollers, also called rollers on.
  • the guide channel is preferably designed so that it forms a sliding or rolling surface on two opposite sides.
  • the guide rail or the guide channel preferably also forms a guide surface lying transversely to the running surface for the lateral guide elements.
  • the guide channel is preferably U- or C-shaped and has z. B. two profile legs and a connecting wall.
  • the guide channel is open to the guide elements.
  • the guide channel to the water channel is open.
  • One of the profile legs forms z. B. the tread of the guide elements.
  • the connecting wall between the two profile legs forms z. B. the guide surface for the side guide element.
  • the gravitational pressure transmission unit preferably has at least one guide element on both sides, a guide rail is correspondingly provided in each case on both sides by the gravitational pressure transmission units. These preferably run parallel to one another.
  • the deflecting members are formed by arc sections of the guide rails, which connect the guide rail in the load and return section with each other.
  • the gravitational pressure transmission units are forcibly guided in the deflection by the guide rails.
  • the curved pieces of the guide rails can also be part of the deflection, which z. B. as described below may include a rotary body with.
  • open U or C guide profiles are used for the water guide channel, they have two guide surfaces lying opposite one another for the guide elements. As a result, the gravitational pressure transmission units or the Anströmorgane in the region of the load section can not be pushed away or raised by the water pressure.
  • one of the deflecting members in particular the upper deflecting member arranged in the inlet region, contains a rotary body, in particular a drive wheel, which is driven by the movement of the drive assembly partially guided around the rotary body.
  • the Drive arrangement is z. B. in a partially circumferential positive and / or frictional engagement with the rotary body, so that this z. B. at the speed of the drive assembly is driven.
  • the deflecting element is formed by the guide rail itself, then the above-mentioned and subsequently described rotary body is assigned to the deflecting element.
  • Rotary body and guide rail can also by definition together form the deflecting element, since both devices are involved in the deflection of the drive assembly.
  • the drive wheel of the deflection member has e.g. Drive recesses arranged along its circumference, in which elements of the gravitational pressure transmission units engage and in this way drive the drive wheel. These elements may be connecting elements of drive links or roller axes of guide rollers.
  • the said deflection member is coupled, for example, with the power generation generator.
  • the generator can be coupled directly to the axis of rotation of the rotary body. Furthermore, the rotational movement can also be transmitted via a gear from the rotary body to the generator.
  • the power generation generator coupled to the upper deflection element is driven by the pressure and / or tension of the gravitational pressure transmission units, in particular the drive members.
  • the power generation generator may also be part of a towed drive, in which the drive assembly or the moving gravitational pressure transmission units in the load section drive a rotating, flexible power transmission member, which in turn drives the power generation generator.
  • that deflecting member which is not assigned to any power generator or both deflecting on both sides of the gravitational pressure transmission units arranged curved guide rails, in which the gravitational Druckionat- transmission units positively guided via their guide elements and deflected from the load section in the return section or vice versa.
  • the gravitational pressure transmission units are forcibly guided in their guide rails along the entire orbit in guide rails. That is, the system has along the orbit of the drive assembly on a closed positive guidance for the gravitational pressure transmission units.
  • the closed positive guide is used in particular in drive arrangements in which the gravitational pressure transmission units are not interconnected, i. are not linked together.
  • the outlet region associated deflecting preferably includes curved guide rails.
  • the arcuate course of the guide profiles preferably comprises a transition arc entering from the load section or return section into the deflection element, which is designed as a clothoid.
  • a guided along a Klothoid arc body is characterized by an even change in angle, whereby z.
  • transverse accelerations are generally reduced perpendicular to the trajectory and in particular acceleration peaks.
  • the radius of curvature along the clothoid arc also decreases continuously starting from the straight stretch.
  • the load section and optionally also the return section preferably run in an inclined plane. That is, the Anströmorgane be moved in these areas linearly and with a constant angle of inclination to a horizontal plane. However, it is also conceivable that the angle of inclination in the region of the load section and / or return section is variable.
  • the Wasserbowungskanal and correspondingly also the load section can also be divided into a plurality of channel sections or Lastteilabitese, which in each case have different angles of inclination compared to the adjacent sections.
  • the water guide channel extends between the upper and lower deflecting preferably parallel to the or the guide rails.
  • the Wasserbowungskanal is therefore preferably also in an inclined plane.
  • the inclination angle ⁇ of the inclined plane is greater than 0 °. Further, the inclination angle ⁇ is less than or equal to 90 ° (degrees).
  • the angle of inclination is greater than 10 ° and in particular greater than 20 °.
  • the angle of inclination is preferably less than 80 ° and in particular less than 70 °. Particularly preferably, the angle of inclination is in a range of 30 ° to 60 °.
  • the system in particular the drive arrangement and the deflecting elements, are preferably mounted in a frame.
  • the frame and the assembly of the operating components are preferably designed so that the inclination of the drive arrangement or the load section and possibly also the length of the load section is adjustable and thus adaptable to different channel gradient and channel lengths.
  • the system may further provide a discharge channel, which is guided for example below the Wasserbowungskanal s.
  • the water flow supplied to the Wasserbowungskanal via a supply channel can thereby partially or completely, bypassing the inlet area into the discharge channel.
  • a controllable guide member is provided, which controls the inflow into the discharge channel or into the inlet region.
  • the drive assembly together with the associated rail guide and the deflecting means can be raised by means of a lifting mechanism via a controller from the water supply channel.
  • the lifting of said organs may be for safety reasons, for. B. to protect the system at high tide, or be provided for auditing purposes.
  • the invention also relates to a method for operating the system according to the invention.
  • water is admitted into the inclined water supply channel of the plant in a higher inlet area.
  • Anströmorgane be performed by the upper deflecting member in an arcuate, in particular circular trajectory from the return section in the inlet region and immerse in the water supply channel.
  • water flows from a feed channel into the water guide channel and flows into the submerged inflow member.
  • the inflowing water is thus introduced into the simultaneously forming water absorption compartments.
  • the water is kept in the water absorption compartments. That is, the water can not flow freely down the water guide channel.
  • the water drawn in the receiving compartments drives the inflow organs through the potential gradient, that is, due to gravity, along the water guide channel in the direction of the lower deflecting element or outlet region.
  • the Anströmorgane At the lower deflecting the Anströmorgane be swung over an arcuate or even partially circular path of movement again from the load section and accordingly from the water supply channel, so that the entrained water in the Outlet area is released from the water storage compartments and can be removed.
  • the outlet area may be configured such that the water can exit vertically or substantially vertically downwards.
  • a kind of shaft opening can be formed in the outlet area. This prevents that residual water taken by the Anströmorgane in the deflection at the lower deflection, high out, thereby reducing the efficiency of the system is reduced.
  • the system is operated variable in power, whereby the circulation speed of the inflow rate of the water can be adjusted.
  • the system is controlled so that the drive assembly moves at constant rates at constant speed.
  • the tilt angle can be changed.
  • the hydroelectric power plant according to the invention is used wherever water has to flow through a height difference. This can z. B. rivers or outlets of dams. Since the regulatory requirements for structures in rivers can be very stringent, the use of the Plant according to the invention, in particular in existing hydrotechnical structures or other industrial plants.
  • the plant is used in sewage treatment plants, eg. B. before the purified water is released into a body of water, or in industrial plants, in which larger amounts of process water for processes are implemented.
  • the inventive system is already suitable for fall heights of 2 to 20 m.
  • FIG. 1 shows a perspective view of a system according to the invention
  • FIG. 2a is a perspective view of a gravitational pressure transmission unit
  • FIG. 2b shows a perspective view of gravitational pressure transmission units
  • FIG. 3 shows a frontal view of a gravitational pressure transmission unit guided in a guide rail
  • FIG. 4a shows a further perspective view of a gravitational pressure transmission unit
  • FIG. 4b shows an enlarged detail of the connecting element of a gravitational pressure transmission unit according to FIG. 4a;
  • FIGS. 5a and 5b show a side view of a system according to the invention in the inlet region according to a first embodiment;
  • FIG. 6a and 6b a side view of a system according to the invention in the inlet region according to a second embodiment
  • FIG. 7 a a perspective view of the deflecting members with guide rails according to a first embodiment
  • FIG. 7b shows a perspective view of the deflecting elements with guide profiles according to a second embodiment
  • FIG. 8 a perspective view of a hydropower plant with several plants according to FIG. 1;
  • FIGS. 9a to 9c show various views of a single gravitational pressure transmission unit guided in a water guide channel
  • FIG. 10 shows a perspective partial view of a further embodiment of a system according to the invention with a closed guide rail and with a drive unit;
  • FIG. 11 a cross-sectional view of a further embodiment of a gravitational pressure transmission unit
  • FIG. 12 shows a cross-sectional view of a further embodiment of a gravitational pressure transmission unit
  • FIG. 13 shows a schematic cross-sectional view of a further embodiment of the installation according to the invention
  • Figure 14 is a schematic cross-sectional view of another embodiment of the inventive system.
  • FIG. 15 is a schematic cross-sectional view of another embodiment of the inventive system
  • FIG. 16 shows a plan view of the intake area of a further embodiment of the installation according to the invention
  • FIG. 17 shows a schematic cross-sectional view of the drainage area according to a development of the installation according to FIG. 14;
  • FIG. 18 shows a schematic cross-sectional view from the discharge area of a further embodiment of a plant according to the invention.
  • the system 1 according to the invention as shown in FIG. 1 shows a drive arrangement 2 guided along an orbital direction R around an upper deflection element 5 and a lower deflection element 6 in the form of a contiguous drive structure 7.
  • the drive structure 7 has one along a water-guiding channel 11 (see also FIG 9b) positively driven load section 4, z.
  • a load strand In the form of a load strand, and a return section 3 guided above and parallel to it, e.g. in the form of a remindtrums, on.
  • the drive structure 7 is driven in the direction of rotation R.
  • the drive structure 7 is formed from a plurality of gravitational pressure transmission units 32 which are present as drive members 9 (see FIG. 2a 2b).
  • the drive members 9 each include a Anströmorgan 8, which engages across the load section 4 transversely in the water supply channel 1 1.
  • the Anströmorgane 8 (see Figure 2a, 2b) are formed as schaufeiförmige wall elements and have two laterally disposed wall portions 30a, 30b, which are curved against the direction of movement R of the drive structure 7 from the plane of the Anströmorgans 8 or bent away.
  • the angle of curvature can z. B. 10 - 30 °.
  • the wall sections 30a, 30b define a flat, central wall section 30c.
  • the Anströmorgan 8 has a width of Dl, which is smaller by the gap tolerance than the channel width. Furthermore, the Anströmorgan has a height D3 and a depth D2.
  • Two adjacent Anströmorgane 8 form together with the the channel bottom 12c and the two side channel walls 12a, 12b respectively a so-called water receiving compartment 13, wherein the channel bottom 12c and the lateral channel walls 12a, 12b are preferably stationary, (see Figure 1, 5a, 5b , 6a, 6b and 9a - 9c).
  • the Anströmorgane 8 are guided without contact to the water guide channel 11, but these form to the channel walls 12a-12c thanks to the exact guidance of the drive members 9 a comparatively small gap, through which only a slight loss of water from the water storage compartments 13 occurs.
  • the Anströmorgan 8 also includes two laterally, eccentrically arranged stiffening elements 14 in the form of transverse walls.
  • the transverse walls 14 do not constitute the lateral termination of the water receiving compartments 13, which, as described above, are closed laterally by the two lateral channel walls 12a, 12b.
  • Each drive member 9 further includes two laterally arranged from the Anströmorgan 8 guide rollers 15.
  • the Anströmorgan 8 also includes a connecting member in the form of a fork-shaped connecting element 16a and this in the direction of movement R opposite connecting body 16b, both with corresponding openings for receiving the roller shaft 18 of the guide rollers 15 are provided.
  • the drive members 9 are pushed on both sides with their respective connecting bodies 16b into the opening between the fork lugs of the fork-shaped connecting element 16a, the roller axle 18 being pushed both through the openings in the fork lugs and in the receiving body 16b.
  • the guide roller 15 is fastened via the roller axle 18 to the drive member 9 or to the drive structure 7. It should be noted here that the drive links 9 or the drive structure 7 does not require transverse to the direction of R R continuous axle elements.
  • the water supply channel 1 1 and the load section 4 are in an inclined plane with a constant slope and also parallel to each other.
  • an upper inlet region 22 see also FIGS. 5a, 5b, 6a, 6b
  • the water W is supplied from a feed channel 24 to the water guide channel 11.
  • a lower outlet region 23 the water W released from the water absorption compartments 13 leaves the plant 1.
  • the inlet region 22 includes a passage limiting member 25.
  • the passage limiting member 25 can be controlled by appropriate control means, the size of the passage opening and thus the water supply channel 1 1 supplied amount of water.
  • the passage opening defined in advance and during operation of the system 1 is not changeable.
  • the system further includes a discharge channel 27, which runs below the water guide channel 1 1, and preferably parallel to this, as shown in Figures 5a, 5b and 6a, 6b.
  • the access to the discharge channel 27 is controlled via a Wasserleitorgan 26, which may be an opening flap or an opening slide or a bulkhead.
  • the water flow W can be routed via the position of the water guide element 27 into the water guide channel 11 or into the discharge channel 27.
  • the Wasserleitorgan 26 is also controlled by a control device.
  • the derivative of the water flow W via the discharge channel 27 happens, for example, when the system, z. B. for maintenance purposes, must be taken out of service. Furthermore, at a high water flow, a portion of the water via the discharge channel 27 are derived.
  • the Wasserleitorgan 26 can also generally serve to regulate the flow of water into the inlet region, so as to. B. to ensure a constant rotational speed of the drive structure.
  • the water or a part thereof can also be discharged via the discharge channel 27, if foreign substances such. As solids are contained in the water, which could affect the function of Appendix 1. As already mentioned, it is also possible that only part of the water is discharged via the discharge channel 27.
  • the Wasserleitorgan 26 is according to the embodiment shown, an opening flap in the bottom of the feed channel 24. In this way, for. B. heavy solids are discharged through the discharge channel 27 targeted from the water flow W while the system is in operation.
  • the guide member 26 is set such that the water flow is supplied to the water guide channel 11, while in FIGS. 5b and 6b the guide member 26 is set so that the water flow is supplied to the discharge channel 27.
  • the Anströmorgane 8 are guided over the upper deflecting member 5 in the inlet region 22, wherein these are transferred in the inlet region 22 from a curved path on the deflection member 5 in a linear movement path along the beginning in the inlet region 22, also linear water supply channel 1 1.
  • the load section 4 lies in the linear movement path of the Anströmorgane 8.
  • the water receiving compartments 13 are formed in the inlet region 22. This is done by merging the Anströmorgane 8 with the Wasserf tion channel 1 1, ie by immersing the Anströmorgane 8 in the water supply channel 1 first
  • the water flow W is fed in the supply channel 24 horizontally or with slight slope to the inlet region 22, where this is then passed into the stronger slope of the water supply channel 1 1. That is, to the supply channel 24 closes in the inlet region 22 of the inclined Wasserbowungskühl 1 1 at.
  • the Wasserbowungs- channel 1 1 and the load section 4 have a tilt angle ⁇ relative to a horizontal H.
  • FIGS. 5 and 6 now differ in the guidance of the inflow elements 8 in the inlet region 22.
  • the inlet region 22 and the guide of the inflow elements 8 are designed in the inlet region 22 such that only one single, forming one Water storage compartment 13 in the inlet region 22 with water W is charged. That is, the filling of a forming water receiving compartment 13 with water begins only when the associated, leading Anströmorgan 8 is immersed to its final position in the water guide channel 1 1 and closes the leading Wasseraufhahmeabteil 13.
  • the inlet region 22 and the guide of the inflow elements 8 are configured in the inlet region 22 so that two water-absorbing compartments 13 forming in the inlet region 22 are simultaneously charged with water W.
  • the filling of a forming Wasserfactabteils 13 begins with water even before the associated, leading Anströmorgan 8 is immersed in its end position in the Wasserbowungskanal 1 1, so that the leading water storage compartment 13 is not yet completely closed. That is, the gap between the channel bottom 12c and the Anströmorgan 8 has not yet reached its minimum distance.
  • both the upper and the lower deflecting members 5, 6 comprise a rotary body 20 in the form of of two coupled via a rotational axis, laterally arranged drive wheels with drive recesses 28 along its circumference.
  • the drive wheel 20 with the circumferential depressions or elevations, such. As teeth, performs the function of a gear.
  • the power for generating electrical energy is removed from the upper deflection member 5.
  • the upper deflecting member 5 is for this purpose in operative connection with a power generator 10, which decreases by means of a transmission device 29 kinetic energy from the rotational movement of the drive structure 7 on the drive wheel 20 and converts it into electrical energy.
  • a lower and upper pair of parallel guide profiles 19a, 19b are arranged, which form the lateral guidance of the drive members 9 in the lower load section 4 and in the upper return section 3.
  • the guide profiles 19a, 19b are formed for example as U-profiles, which are each open to the drive member 9 out. They are arranged laterally from the water guide channel 1 1 above or in the region of the upper end portion of the channel side walls 12a, 12b and connected to a support means or directly or indirectly to the water guide channel 1 1.
  • the guide rollers 15 have a rolling surface made of plastic, such as POM (polyoxymethylene) on. Furthermore, there is also the tread on the guide profile 19 a, 19 b made of plastic, such. B. POM. In this way, a low-noise and low-friction running behavior of the guide rollers 15 is ensured.
  • the guide rollers 15 are encapsulated bearings, z. B. ball bearings, stored friction.
  • the guide rollers 15 further each have laterally outwardly to the guide profile 19a, 19b directed towards, dome-shaped side guide elements 17, via which the drive members 9 are each axially guided.
  • the (19Ements- demente 17 as well as the corresponding guide surface on the guide profile 19 a, 19 b are preferably made of plastic, such. B. POM.
  • the plastic is characterized by its good sliding properties and its low water absorption capacity.
  • the lower deflecting member 6 for guided deflection of the drive structure 7 does not have a rotary body but a curved guide profile 19c with an arcuate guideway.
  • the curved guide profile 19 c connects the lower guide profile 19 a of the load section 4 with the upper guide profile 19 b of the return section 3.
  • the drive members 9 of the drive structure 7 are guided in this way along the arcuate guide track from the load section 4 in the return section 3.
  • the transitional arch 21 from the load section 4 into the curved guide path of the lower deflecting member 6 may be designed as a clothoid.
  • the deflecting members 5, 6 both rotary bodies with recesses for receiving the roller axes and a curved guide profile with arcuate guideway included, so that the drive structure 7 is guided both on the guide rollers in the guide profile and on the axes of rotation in the recesses of the drive wheel (see FIG. 10).
  • the inventive system is particularly suitable for a modular construction of a hydropower plant.
  • a plurality of plants according to the invention described above, as shown by way of example in FIG. 8, can be arranged next to one another and combined in this way to form a hydropower plant 40.
  • several systems according to the invention can also be used alternatively or in combination with the aforementioned parallel arrangement one behind the other, i. be arranged in series.
  • FIG. 10 The partial perspective view of a particular embodiment of a system according to the invention shown in FIG. 10 has two guide rails 69, which are spaced apart from each other and run parallel to one another and which form a closed guide along an orbit.
  • the guide rails 69 each have a sloping and straight guide section in a load and return section 54, 53.
  • the guide rails 69 are formed in an upper and lower deflection region as arcuate deflection members 5, 6, which deflect the gravitational pressure transmission units from the return section into the load section and vice versa.
  • the said curved pieces connect the straight guide sections of the Guide rails in the load and return section 54, 53 each to a closed track. This results in a forced operation.
  • the guide rails comprise, for example, a U-shaped profile longitudinal body.
  • the U-shaped profile longitudinal body of the guide rails 69 are open towards each other.
  • the gravitational pressure transmission units (not shown) are now arranged between the two guide rails 69 and guided via corresponding guide elements in the guide rails 69.
  • the guide rails 69 are guided with their arcuate sections around or along the circumference of a rotary body 55.
  • the rotary body 55 has two spaced-apart and connected via a rotation axis drive wheels 70.
  • the drive wheels 70 have drive recesses arranged along their circumference, into which the gravitational pressure transmission units engage (not shown) and in this way drive the rotary body 55.
  • the rotary body 55 is coupled to a power generator 60 for the purpose of power take-off.
  • the rotary body 55 and thus the power generator 60 are driven by the pressure and / or tensile force of Gravitations réelleübertragungs- units.
  • FIG. 11 shows a possible constructive solution of the positive guidance according to the third sub-variant described above.
  • the embodiment according to Figure 1 1 shows a rectangular water guide channel 1 1 1 with a channel bottom 1 12c and two channel see walls 1 12a, 1 12b. Laterally on the water guide channel 1 1 1 in the opening side region of the channel side walls 1 12 a, 1 12 b guide rails 1 19 are arranged on both sides.
  • the gravitational pressure transmission unit 132 is arranged with its Anströmorgan 108 in the water supply channel 1 1 1.
  • the Anströmorgan 108 is guided without contact in the water supply channel 1 1 1, however, takes virtually the entire cross section of the water guide channel 11 1, forming small gap distances.
  • the gravitational pressure transmission unit 132 contains two, with respect to the direction of rotation at the radially inner end portion of the Anströmorgans 108 and laterally disposed therefrom sliding elements 115th
  • the guide rails 1 19 each comprise a U-shaped longitudinal profile, which is open to the sliding elements 1 15 associated therewith.
  • the longitudinal profiles are thus directed towards each other with their guide channel openings.
  • the sliding elements 1 15 are slidably guided in the guide channel.
  • the sliding elements 1 15 each have a laterally outwardly directed towards the guide rail 1 19 towards calotte-shaped side guide element 1 17, via which the gravitational pressure transmission unit 132 is guided laterally in the guide rail 1 19.
  • the sliding elements 1 15 are attached to the Anströmorgan 108 via transverse to the direction of rotation arranged connecting axes 1 14.
  • FIG. 12 shows a possible constructive solution of the positive guidance according to the second embodiment variant described above.
  • the system according to FIG. 12 likewise shows a rectangular water-guiding channel 21 1 with a channel bottom 212 c and two channel side walls 212 a, 212 b.
  • the guide rail 219 comprises a C-shaped longitudinal profile, which leads to the water guide channel 211 is open and forms a gap-shaped guide channel opening.
  • the gravitational pressure transmission unit 232 is arranged with its Anströmorgan 208 in the water supply channel 21 1.
  • the Anströmorgan 208 is guided without contact in Wasserbowungskanal 21 1 takes, however, forming the formation of small gap distances virtually the entire cross section of the water guide channel 21 1 a.
  • the gravitational pressure transmission unit 232 includes two guide rollers 215 which are spaced apart from one another and are interconnected via an axis and which are arranged above the inflow member 208 between the end portions of the inflow member 208 viewed in the circumferential direction and here outside the water guide channel 21 1.
  • the guide rollers 215 are guided in the C-shaped guide channel of the guide rail 219 rolling.
  • the guide rollers 215 are connected to the Anströmorgan 208 via a guided through the guide channel opening suspension.
  • the gravitational pressure transmission unit 232 further includes, in the region of the suspension, a horizontal guide element 216, which is guided in the slot-shaped guide channel opening and thus guides the inflow element 208 laterally.
  • the horizontal guide member 216 may also be a roller.
  • FIGS. 13 to 15 the three sub-variants of the first embodiment variant of the positive guidance according to the invention described above are shown schematically.
  • the system 301, 401, 501 contains a drive arrangement 302, 402, 502 with a plurality of gravitational pressure transmission units 332, 432, 532 arranged one behind the other and at a distance from one another.
  • the gravitational pressure transmission units 332, 432, 532 each contain a Anströmorgan 308, 408, 508.
  • Adjacent Anströmorgane 308, 408, 508 form each in a load section 304, 404, 504 water receiving compartments 313, 413, 513 from.
  • the gravitational pressure transmission units 332 further comprise, in the direction of rotation R, two guide elements 315, 415, 515 arranged laterally from the inflow element 308, 408, 508.
  • the plant 301, 401, 501 further comprises two guide rails 319, 419, 519, which are arranged parallel to each other and are disposed laterally of or on the water supply channel (not shown).
  • the guide rails 319, 419, 519 lead, inter alia, through a load section 304, 404, 504 and a return section 303, 403, 503.
  • the guide rails 319, 419, 519 form a closed positive guide along the orbit of the gravitational pressure transmission units 332, 432, 532.
  • the gravitational pressure transmission units 332, 432, 532 are forcibly guided along the guide rails 319, 419, 519 via the guide elements 315, 415, 515.
  • Water 333, 433, 533 then flows into the water receiving compartments 313, 413, 513 in a higher inlet region 322, 422, 522 and moves the gravitational pressure transfer units 332, 432, 532 in the direction of an outlet region 323, 423, 523, in which the water is released from the water receiving compartments 313, 413, 513 again.
  • the water 333, 433, 533 flows in the outlet region 323, 423, 523, preferably in a vertical or substantially vertical downward direction, out of the water absorption compartments 313, 413, 513, so that the inflow elements 308, 408, 508 avoid any residual water in the direction take the remindbowabêtes 303, 403, 503.
  • the deflecting member on the upper and lower deflection section is formed inter alia by arcuate sections of the guide rail 319, 419, 519, which connects the load section with the remindzenabrough the guide rail.
  • the guide ⁇ demente 315 with respect to the closed loop path arranged on the radially outer end portion of the Anströmorgans 308 here laterally.
  • the guide rails 319, in which the guide elements 315 are guided, are arranged laterally in the region of the bottom end section of the water guide channel 311.
  • the water receiving compartments 313 in the deflection at the upper and lower deflecting members are reduced in a wedge-like manner by the radial alignment of the inflow members 308 in the deflecting bend.
  • the forced operation according to the present first sub-variant allows in comparison to the second and especially to the third sub-variant an extremely compact design of the system, without thereby reducing the absorption capacity of the water-absorbing compartments or the length of the load section would be reduced.
  • the guide elements 415 are here arranged with respect to the closed orbit at the radially inner end portion of the Anströmorgans 408.
  • the guide rails 419, in which the guide elements 415 are guided, can be arranged laterally in the region of the opening-side end section of the water guide channel 41 1 or above the water guide channel 41 1 (see also FIGS. 1 1 and 12).
  • FIG. 11 A cross-sectional view through the water-guiding channel of a possible constructive solution of the positive guidance according to this third sub-variant is shown in FIG. 11 as already mentioned.
  • the above-mentioned second sub-variant is shown.
  • the guide elements 515 are arranged laterally between the radially outer and inner end portions of the Anströmorgans 508 with respect to the closed orbit.
  • the guide rails 519 are arranged laterally in the region between the bottom-side and the opening-side end portion of the Wasserbowungskanals 51 1 in the channel side walls.
  • FIG. 16 shows the above-described third sub-variant of a forced guidance (see also FIGS. 12 and 14).
  • the system 601 comprises a guide rail 619 arranged centrally above the water guide channel 611.
  • the gravitational pressure transfer units 632 each contain a flow element 608 and a guide element 615 arranged centrally above the flow element 608 between its end sections viewed in the direction of rotation and in the region of the load section 604 is guided in the guide rail 619.
  • the inlet region 622 is designed so that the water 633, among other things laterally obliquely flows into the forming water receiving compartments 613 and flows into the Wasserbowungskanal 61 1 dipping Anströmorgan 608. As a result, a faster and more efficient filling of the water absorption compartments 613 is achieved.
  • FIG. 17 shows a partial view of the outlet region 723 of a further embodiment of a system 701 according to the invention.
  • the system 701 contains a drive arrangement 702 with a multiplicity of gravitational pressure transmission units forcibly guided along a closed circulation path.
  • the forced guidance the drive assembly 702 is done via guided in a guide rail 719 guide elements 715 and corresponds to the forced operation according to the third sub-variant of Figure 14. Regarding description of the forced operation, reference is therefore made to the comments on Figure 14.
  • the gravitational pressure transmission units 732 each contain a Anströmorgan 708 extending across the width of the water guide channel 711. Two adjacent Anströmorgane 708 form together with the Wasserbowungs- channel 71 1 a water receiving compartment 713 from.
  • the system 701 has a sloping load section 704 with an outlet section 723 arranged at its lower end. In the outlet region 723, a duct-like outlet is provided, via which the water 733 held in the water-containing compartments 713 is discharged substantially vertically downwards.
  • the gravitational pressure transfer units 732 are guided in an arc around into a return section 703, which returns the gravitational pressure transfer units 732 back into the inlet region (not shown).
  • the deflection member in the lower deflection region is formed by an arcuate portion of the guide rail 719, which connects the load portion with the return portion of the guide rail 719.
  • the drive arrangement 702 is in the lower region of the load section 704 with a drag drive 706 in engagement.
  • the towing drive 706 has a flexible drive member 727, which is guided around two spaced deflecting members 725, 726 and which is in positive and / or non-positive engagement with the drive assembly 702 via an engagement portion.
  • the gravitational pressure transmission units 732 of the drive arrangement 702 guided past the towed drive 706 to the lower deflecting element now drive the drive member 727 of the towing drive 706.
  • a generator 710 takes on one of the deflecting members 726 of the towing drive 706 torque for power generation.
  • FIG. 18 shows a partial view of the outlet region 823 of a further embodiment of a plant 801 according to the invention.
  • the plant 801 contains a drive arrangement 802 with a multiplicity of gravitational pressure transmission units 832 forcibly guided along a closed circulation path.
  • the gravitational pressure transmission units 832 each include an inflow member 808 extending across the width of the water guide channel 827. These divide the water guide channel 827 in the load section 804 into water containment compartments.
  • the water guide channel 827 is formed in the load section 804 closed tubular. In the outlet region 823, the tubular water guide channel 827 is open towards the bottom, so that the water can flow out of the water absorption compartments.
  • the gravitational pressure transmission units 832 are not firmly connected to each other but designed as a pressure body.
  • Gravitational pressure transmission units 832 for this purpose include force transmission members 810, 81 1 for transmitting pressure forces from a preceding gravitational pressure transmission unit 832 to a subsequent gravitational pressure transmission unit 832.
  • the force transmission members 810, 81 1 have mutually cooperating pressure surfaces, via which the pressure forces between the gravitational pressure transmission units 832 are passed on. In this way, the drive arrangement can be controlled by pure pressure forces similar to a drive chain in circulation. direction around the deflecting move, but without the gravitational pressure transmission units 832 are firmly connected to each other.
  • a rotary body 826 is arranged in the lower deflection region.
  • the rotary body 826 has recesses on its circumference, in which elements, such. B. the Anströmorgane 808, the gravitational pressure transmission units 832 intervene.
  • the rotary body 826 is driven by this positive engagement by the gravitation pressure transmission units 832.
  • the rotary body 826 forms part of the lower deflecting member.
  • the rohrfbrmige water supply channel which is also guide rail for the drive assembly 802, as a further part of the Umlenkorgans arcuately guided around the rotary body 826 and connects the load portion with the return section (not shown) of the water guide channel and the guide rail.
  • the rohrfbrmige guide rail is open in the arcuate deflection section to the rotary body 826, so that the elements of the gravitational pressure transmission units 832 can engage in the recesses on the rotary body 826.
  • the rotary body 826 is connected to a generator 830 via a drive means 806, such as belts or gears. This takes the drive assembly 802 power for power generation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)

Abstract

L'invention concerne une installation (1) de production d'énergie électrique à partir d'énergie d'origine hydraulique. L'installation (1) comprend un dispositif de commande (2) rotatif autour de deux organes de déviation (5, 6) à distance l'un de l'autre, qui est entraîné par la force hydraulique, dans un sens de rotation (R), présentant une section de charge (4) s'étendant le long d'une pente. Le dispositif de commande (2) comprend une pluralité d'unités gravitationnelles de transfert de pression (32), disposées les unes à la suite des autres, dans le sens de rotation (R), et à distance entre elles, présentant chacune un organe d'attaque (8). L'installation (1) comprend en outre un générateur (10), pour la production d'énergie électrique à partir du dispositif de commande (2) entraîné en rotation. L'invention est caractérisée en ce que les unités gravitationnelles de transfert de pression (32) comprennent des éléments de guidage (15), et en ce que l'installation (1) renferme, le long de la section de charge (4), au moins un rail de guidage (19), dans lequel les éléments de guidage (15) des unités gravitationnelles de transfert de pression (32) sont disposées déplaçables, de façon que les unités gravitationnelles de transfert de pression (32) soient guidées de force, au moins dans la région de la section de charge (4), entre les organes de déviation (5, 6).
EP12720077.2A 2011-07-22 2012-04-27 Dispositif de production d'énergie électrique à partir de l'énergie de l'eau Not-in-force EP2734726B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01233/11A CH705302A1 (de) 2011-07-22 2011-07-22 Anlage zur Gewinnung von elektrischer Energie aus Wasserkraft.
PCT/CH2012/000094 WO2013013328A1 (fr) 2011-07-22 2012-04-27 Dispositif de production d'énergie électrique à partir d'énergie d'origine hydraulique

Publications (2)

Publication Number Publication Date
EP2734726A1 true EP2734726A1 (fr) 2014-05-28
EP2734726B1 EP2734726B1 (fr) 2016-08-31

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EP12720077.2A Not-in-force EP2734726B1 (fr) 2011-07-22 2012-04-27 Dispositif de production d'énergie électrique à partir de l'énergie de l'eau

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US (1) US9494126B2 (fr)
EP (1) EP2734726B1 (fr)
JP (1) JP2014521008A (fr)
BR (1) BR112014001408A2 (fr)
CA (1) CA2841615A1 (fr)
CH (1) CH705302A1 (fr)
CO (1) CO6950449A2 (fr)
WO (1) WO2013013328A1 (fr)

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CN109563800A (zh) * 2016-07-26 2019-04-02 纳特尔能源公司 线性水斗式水轮机
KR102152434B1 (ko) * 2019-06-17 2020-09-04 주식회사 선광코리아 무한궤도 수차를 이용한 수력발전장치
CN112879198B (zh) * 2021-01-20 2021-11-19 西安交通大学 一种导流型双轴薄膜摆动式水轮机
USD929331S1 (en) * 2021-03-06 2021-08-31 James L. Wolff Tide powered electricity generating system

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Publication number Publication date
WO2013013328A1 (fr) 2013-01-31
BR112014001408A2 (pt) 2017-03-01
CO6950449A2 (es) 2014-05-20
US20140159372A1 (en) 2014-06-12
EP2734726B1 (fr) 2016-08-31
CH705302A1 (de) 2013-01-31
US9494126B2 (en) 2016-11-15
CA2841615A1 (fr) 2013-01-31
JP2014521008A (ja) 2014-08-25

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